Librewolf warning after install: "Some of Librewolf's security features may offer less protection on your current operating system.""

Problem Description:
After a fresh install of Kubuntu I installed Librewolf browser because that is supposed to be preferred to current Firefox . I installed Librewolf using the instructions on their website. You add their repository extrepo and install from there.

At the first start of Librewolf it warns “Some of Librewolf’s security features may offer less protection on your current operating system” and provides a link to Mozzilla to fix the issue.
It basically says you have to create an AppArmor profile for Firefox and add that to the system. But that solution assumes the Firefox install is at $HOME/bin/. This is not the case with default Kubuntu, if I do ‘which firefox’ it is in /usr/bin/firefox.

This is all a bit too much for my knowledge. It is confusing that a browser install needs this stuff. Or should I have installed it otherwise? For me it is pure logic to go to Librewolf’s website and follow their instructions.

Any advise on how to proceed would be very much appreciated. I justwant to browse secure and private, without adds and AI-stuff.

Ubuntu Version:
Kubuntu 24.04

Desktop Environment (if applicable):
KDE Plasma

Well, since librewolf is not in the Ubuntu archive, you should contact their support to get help with it …

Use the Ubuntu provided, tested and security supported firefox with some AD blocking extension (and I bet there is also something to suppress AI nowadays) ?

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Says who? LibreWolf team?

A default Ubuntu & Kubuntu system includes a firefox apparmor profile; though its for the firefox provided by Mozilla as a snap package that is included by default.

FYI: I use ublock origin on both my firefox and chromium browsers; both Ubuntu (snap) repository installs,

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